

 
 <head>

<script language="javascript">
function remind_showmessage()
{
alert("ss");
try
{
alert(gc_gc);
	gc_gc.src = "gc.jsp";
}
catch(e)
{
    alert(e);
}
}
window.setInterval("remind_showmessage()",5000); 
</script>
</head>
<iframe id="gc_gc" name="gc_gc" src="gc.jsp"></iframe>
 
 